public SchedulerEntry(ApproximateDateBlock dateBlock)
{
if (dateBlock == null)
{
throw new ArgumentNullException();
}
_dateBlock = dateBlock;
_dateBlock.DateUpdated += _dateBlock_DateUpdated;
_cachedUpdateTime = dateBlock.NextUpdate;
}
public static void Unregister(ApproximateDateBlock dateBlock)
{
lock (typeof(InOrderScheduler))
{
if (_instance == null) _instance = new InOrderScheduler();
}
Task.Run(new Action(() =>
{
_instance.InternalUnregister(dateBlock);
}));
}
private void InternalRegister(ApproximateDateBlock dateBlock)
{
lock (this)
{
CancelCurrentUpdate();
SchedulerEntry schedulerEntry = new SchedulerEntry(dateBlock);
schedulerEntry.DateUpdated += OnDateUpdated;
_set.Add(schedulerEntry.CachedNextUpdate, schedulerEntry);
_lookupDict.Add(dateBlock, schedulerEntry);
ScheduleNextUpdate();
}
}
private void InternalUnregister(ApproximateDateBlock dateBlock)
{
SchedulerEntry schedulerEntry;
lock (this)
{
if (_lookupDict.TryGetValue(dateBlock, out schedulerEntry))
{
CancelCurrentUpdate();
_lookupDict.Remove(dateBlock);
_set.Remove(schedulerEntry);
ScheduleNextUpdate();
}
}
}
